Reporters must contact Susan Hendrix at 301-286-7745 by 11 a.m. EDT June 7 for the call in number and passcode. At the start of the conference, images and supporting graphics will be available at: http://www.nasa.gov/formedia

A video file about this discovery will air on NASA TV on June 7. NASA TV is carried on an MPEG-2 digital signal accessed via satellite AMC-6, at 72 degrees west longitude, transponder 17C, 4040 MHz, vertical polarization. In Alaska and Hawaii, it’s on AMC-7 at 137 degrees west longitude, transponder 18C, at 4060 MHz, horizontal polarization. For information about NASA TV and links to streaming video, visit:http://www.nasa.gov/ntv